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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $443,103,740 | 43,446,571 | 43,446,571 |
| 2006 | $481,183,505 | 44,140,752 | 44,140,752 |
| 2007 | $627,109,427 | 49,189,762 | 49,189,762 |
| 2008 | $742,096,330 | 50,137,227 | 50,137,227 |
| 2009 | $477,285,049 | 37,187,961 | 37,187,961 |
| 2010 | $542,138,848 | 46,433,603 | 46,433,603 |
| 2011 | $928,174,649 | 69,474,423 | 69,474,423 |
Note: Quantity represents Weight in kilograms
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